Pipeline welding device

Abstract

The utility model belongs to the technical field of pipeline welding, and discloses a pipeline welding device which comprises a mounting box, two mounting seats are fixedly connected to the top of the mounting box, arc blocks are movably connected to the interiors of the two mounting seats, mounting blocks are fixedly connected to the tops of inner cavities of the arc blocks, and the mounting blocks are fixedly connected to the tops of the inner cavities of the arc blocks. Welding equipment is fixedly connected to the bottom of the mounting block, and a driving motor is fixedly connected to the right side of the mounting box. By arranging the arc block, the driving motor, the lead screw, the movable plate and the toothed plate, when the driving motor operates, the lead screw rotates to drive the movable plate to move left and right, then the toothed plate moves left and right to be meshed with the arc block to drive welding equipment to rotate circumferentially, and the welding equipment is started at the moment; when the pipeline rotates, the welding head is driven to move downwards to achieve the purpose of welding the circumference of the pipeline, the situation that the welding position of two sets of pipelines is broken due to pipeline rotation is avoided, and the welding efficiency of the welding device is improved.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline welding technology, specifically a pipeline welding device. Background Technology

[0002] Pipe welding is a process for connecting pipes. It involves heating, pressurizing, or both, with or without filler material, to achieve an atomic bond between the parts of two or more pipes to be joined, thereby forming a permanent connection.

[0003] A search revealed an existing patent, CN221603607U, which describes a pipe welding device. The patent addresses this by proposing a pipe clamping and rotating assembly. Since pipes are typically placed on a flat surface, welding two sets of pipes requires manual rotation of the pipes or the welding equipment, resulting in low efficiency and increased labor costs. This assembly utilizes multiple rotating wheels to rotate the pipe, completing one revolution of the weld and improving efficiency. However, this patent has the following drawbacks in practical use:

[0004] The welding device uses multiple sets of rotating wheels to drive the pipes to rotate. Since the welding elements have just started welding the pipes, the connection between the two sets of pipes is not strong enough at this time. Rotating the pipes at this time can easily cause the weld joint between the two sets of pipes to break, which will affect the welding quality of the pipes. Therefore, it needs to be improved. Utility Model Content

[0005] The purpose of this invention is to address the above problems by providing a pipe welding device that has the advantages of circumferential welding.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pipe welding device, comprising a mounting box, with two mounting seats fixedly connected to the top of the mounting box, each mounting seat having a movable arc block inside, a mounting block fixedly connected to the top of the inner cavity of the arc block, and a welding device fixedly connected to the bottom of the mounting block. A drive motor is fixedly connected to the right side of the mounting box, and a lead screw is fixedly sleeved at the other end of the output shaft of the drive motor. The left side of the lead screw passes through the mounting box and extends into the interior of the mounting box. A movable plate is threaded onto the outer surface of the lead screw, and the outer surface of the movable plate is movably connected to the inner surface of the top of the mounting box. A toothed plate is fixedly connected to the top of the movable plate, and the bottom of the toothed plate is movably connected to the top of the mounting box. The outer surface of the top of the toothed plate meshes with the outer surface of the arc block.

[0007] As a preferred embodiment of this utility model, a sliding groove is provided at the bottom of the inner cavity of the mounting box, and the inner surface of the sliding groove is movably connected to the outer surface of the movable plate.

[0008] As a preferred embodiment of this utility model, the top of the mounting box is fixedly connected to a fixing block located directly in front of the mounting base, and the fixing block is internally threaded with a threaded rod.

[0009] As a preferred embodiment of this utility model, the other end of the threaded rod is movably sleeved with a clamping plate, and the bottom of the clamping plate is movably connected to the top of the mounting box.

[0010] As a preferred technical solution of this utility model, the top of the mounting box is provided with a limiting groove located directly below the threaded rod, and a limiting block is movably connected to the inner surface of the limiting groove. The top of the limiting block is fixedly connected to the bottom of the clamping plate.

[0011] As a preferred technical solution of this utility model, the top of the mounting box is fixedly connected with protective plates located on the left and right sides of the arc block, and the inner wall of the protective plates is movably sleeved with telescopic plates.

[0012] As a preferred technical solution of this utility model, a drive motor located directly in front of the protective plate is fixedly connected to the top of the mounting box, a rotating shaft is fixedly sleeved at the other end of the output shaft of the drive motor, a rotating rod is fixedly sleeved on the outer surface of the rotating shaft, the bottom of the rotating rod is movably connected to the top of the protective plate, a cylindrical block is movably connected to the inner surface of the rotating rod, and the bottom of the cylindrical block is fixedly connected to the top of the telescopic plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention incorporates an arc block, a drive motor, a lead screw, a movable plate, and a toothed plate. When the drive motor operates, the lead screw rotates, causing the movable plate to move left and right. This, in turn, causes the toothed plate to move left and right, meshing with the arc block and rotating the welding equipment. When the welding equipment is started, the welding head moves downward, thus achieving the purpose of circumferential welding of the pipe. This avoids the pipe rotating and causing breakage at the weld joint between the two sets of pipes, thereby improving the welding efficiency of the welding device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is a cross-sectional view of the side of the present invention;

[0018] Figure 4 This is a cross-sectional view of the limiting block of this utility model;

[0019] Figure 5 This is a schematic diagram of the movable plate structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the telescopic plate structure of this utility model.

[0021] In the diagram: 1. Mounting box; 2. Mounting base; 3. Arc block; 4. Mounting block; 5. Welding equipment; 6. Drive motor; 7. Lead screw; 8. Movable plate; 9. Toothed plate; 10. Slide groove; 11. Fixed block; 12. Threaded rod; 13. Clamping plate; 14. Limiting groove; 15. Limiting block; 16. Protective plate; 17. Telescopic plate; 18. Drive motor; 19. Rotating shaft; 20. Rotating rod; 21. Cylindrical block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1 to 6 As shown, this utility model provides a pipe welding device, including a mounting box 1. Two mounting seats 2 are fixedly connected to the top of the mounting box 1. Each mounting seat 2 has a movable arc block 3 inside. A mounting block 4 is fixedly connected to the top of the inner cavity of the arc block 3. A welding device 5 is fixedly connected to the bottom of the mounting block 4. A drive motor 6 is fixedly connected to the right side of the mounting box 1. A lead screw 7 is fixedly sleeved at the other end of the output shaft of the drive motor 6. The left side of the lead screw 7 passes through the mounting box 1 and extends into the interior of the mounting box 1. A threaded sleeve is fitted onto the outer surface of the lead screw 7. The movable plate 8 has its outer surface movably connected to the inner surface of the top of the mounting box 1. A toothed plate 9 is fixedly connected to the top of the movable plate 8, and the bottom of the toothed plate 9 is movably connected to the top of the mounting box 1. The outer surface of the top of the toothed plate 9 meshes with the outer surface of the arc block 3. When the drive motor 6 runs, the lead screw 7 will rotate, causing the movable plate 8 to move left and right. This, in turn, causes the toothed plate 9 to move left and right and mesh with the arc block 3, driving the welding equipment 5 to rotate circumferentially. This achieves the purpose of circumferential welding of the pipe and avoids the pipe from rotating and causing the weld joint of the two sets of pipes to break.

[0024] The bottom of the inner cavity of the mounting box 1 is provided with a sliding groove 10, and the inner surface of the sliding groove 10 is movably connected to the outer surface of the movable plate 8. The design of the sliding groove 10 serves to limit the movement of the movable plate 8 and ensure the stability of the horizontal movement of the movable plate 8.

[0025] The top of the mounting box 1 is fixedly connected to a fixing block 11 located directly in front of the mounting base 2, and the fixing block 11 is internally threaded with a threaded rod 12; the design of the fixing block 11 serves to support and stabilize the threaded rod 12.

[0026] The other end of the threaded rod 12 is movably sleeved with a clamping plate 13, and the bottom of the clamping plate 13 is movably connected to the top of the mounting box 1. Rotating the two threaded rods 12 to move towards each other will drive the two clamping plates 13 to move towards each other, and the purpose of clamping and fixing the pipe is achieved under the action of the two clamping plates 13.

[0027] The top of the mounting box 1 is provided with a limiting groove 14 located directly below the threaded rod 12. The inner surface of the limiting groove 14 is movably connected to a limiting block 15. The top of the limiting block 15 is fixedly connected to the bottom of the clamping plate 13. The design of the limiting groove 14 and the limiting block 15 serves to limit the clamping plate 13 and ensure the stability of the horizontal movement of the clamping plate 13.

[0028] Among them, the top of the mounting box 1 is fixedly connected to the protective plates 16 located on the left and right sides of the arc block 3, and the inner wall of the protective plate 16 is movably sleeved with the telescopic plate 17; this design allows the telescopic plate 17 to retract inside the protective plate 16, while the protective plate 16 serves to protect the toothed plate 9.

[0029] The top of the mounting box 1 is fixedly connected to a drive motor 18 located directly in front of the protective plate 16. The other end of the output shaft of the drive motor 18 is fixedly sleeved with a rotating shaft 19. A rotating rod 20 is fixedly sleeved on the outer surface of the rotating shaft 19. The bottom of the rotating rod 20 is movably connected to the top of the protective plate 16. A cylindrical block 21 is movably connected to the inner surface of the rotating rod 20. The bottom of the cylindrical block 21 is fixedly connected to the top of the telescopic plate 17. When the drive motor 18 is running, the rotating shaft 19 will drive the rotating rod 20 to rotate, which will cause the rotating rod 20 to drive the cylindrical block 21 to move to the left. This will cause the telescopic plate 17 to move to the left to protect the toothed plate 9 extending out of the mounting box 1, preventing the operator from walking and colliding with the toothed plate 9 and causing damage.

[0030] Working principle and usage process of this utility model:

[0031] When welding the pipes, first place the two sets of pipes between the four clamping plates 13. Then rotate the four threaded rods 12 to move them in opposite directions, which will cause the four clamping plates 13 to move in opposite directions in pairs to clamp and fix the two sets of pipes. Then start the drive motor 6, which will cause the lead screw 7 to rotate and drive the movable plate 8 to move left and right. This will cause the toothed plate 9 to move left and right and mesh with the arc block 3, driving the welding equipment 5 to rotate circumferentially. At this time, start the welding equipment 5, which will drive the welding head to move downward, thus achieving the purpose of circumferential welding of the pipes. This avoids the pipes from rotating and causing the weld joint of the two sets of pipes to break, and improves the welding efficiency of the welding device.

[0032] As the toothed plate 9 moves to the left, it extends to the left side of the mounting box 1, simultaneously achieving 180-degree welding of the pipeline. At this time, the drive motor 18 is activated, causing the rotating shaft 19 to drive the rotating rod 20 to rotate, which in turn causes the rotating rod 20 to drive the cylindrical block 21 to move to the left, thereby causing the telescopic plate 17 to move to the left to protect the toothed plate 9 extending from the left side of the mounting box 1. Then, the toothed plate 9 returns to its original position and moves to the right, extending to the right side of the mounting box 1, simultaneously achieving 180-degree welding of the other side of the pipeline. At this time, another drive motor 18 is activated, causing the rotating shaft 19 to drive the rotating rod 20 to rotate, which in turn causes the rotating rod 20 to drive the cylindrical block 21 to move to the right, thereby causing the telescopic plate 17 to move to the right to protect the toothed plate 9 extending from the right side of the mounting box 1, preventing the operator from walking and colliding with the toothed plate 9 and causing damage.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pipe welding apparatus comprising a mounting box (1), characterized in that: The top of mounting box (1) is fixedly connected with mounting seat (2), the number of mounting seat (2) is two, the inside of two mounting seat (2) is movably connected with arc block (3), the top of arc block (3) inner chamber is fixedly connected with mounting block (4), the bottom of mounting block (4) is fixedly connected with welding equipment (5), the right side of mounting box (1) is fixedly connected with drive motor (6), the other end of drive motor (6) output shaft is fixedly sleeved with lead screw (7), the left side of lead screw (7) penetrates mounting box (1) and extends to the inside of mounting box (1), the outer surface of lead screw (7) is threadedly sleeved with movable plate (8), the outer surface of movable plate (8) is movably connected with the inner surface of mounting box (1) top, the top of movable plate (8) is fixedly connected with toothed plate (9), the bottom of toothed plate (9) is movably connected with the top of mounting box (1), the outer surface of toothed plate (9) top is meshedly connected with the outer surface of arc block (3).

2. A pipe welding apparatus according to claim 1, wherein: The bottom of mounting box (1) inner chamber is provided with sliding groove (10), the inner surface of sliding groove (10) is movably connected with the outer surface of movable plate (8).

3. A pipe welding apparatus according to claim 1, wherein: The top of mounting box (1) is fixedly connected with fixed block (11) located at the front of mounting seat (2), the inside of fixed block (11) is threadedly connected with threaded rod (12).

4. A pipe welding apparatus according to claim 3, wherein: The other end of threaded rod (12) is movably sleeved with clamping plate (13), the bottom of clamping plate (13) is movably connected with the top of mounting box (1).

5. A pipe welding apparatus according to claim 1, wherein: The top of mounting box (1) is provided with limiting groove (14) located below threaded rod (12), the inner surface of limiting groove (14) is movably connected with limiting block (15), the top of limiting block (15) is fixedly connected with the bottom of clamping plate (13).

6. A pipe welding apparatus according to claim 1, wherein: The top of mounting box (1) is fixedly connected with protective plate (16) located at the left and right sides of arc block (3), the inner wall of protective plate (16) is movably sleeved with telescopic plate (17).

7. A pipe welding apparatus according to claim 1, wherein: The top of mounting box (1) is fixedly connected with transmission motor (18) located at the front of protective plate (16), the other end of transmission motor (18) output shaft is fixedly sleeved with rotating shaft (19), the outer surface of rotating shaft (19) is fixedly sleeved with rotary rod (20), the bottom of rotary rod (20) is movably connected with the top of protective plate (16), the inner surface of rotary rod (20) is movably connected with cylindrical block (21), the bottom of cylindrical block (21) is fixedly connected with the top of telescopic plate (17).

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